browser_select_option

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description should convey behavioral traits. It does not mention that permissions may be required (via element description), that multiple values can be selected, or any side effects. The parameter descriptions provide some detail, but the tool description adds nothing.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence, direct and to the point. No wasted words, but could benefit from slightly more detail without being verbose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple dropdown selection tool, the description lacks completeness. It does not explain that values is an array (allowing multi-select), that ref must come from a snapshot, or how the element description is used for permission. The low complexity does not excuse the omission.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3. The description does not add extra meaning beyond the parameter descriptions. No additional clarity or examples provided.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('select an option') and the target ('dropdown'). It distinguishes from sibling tools like browser_click or browser_navigate by specifying a dropdown operation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like browser_click for non-dropdown elements, nor any prerequisites (e.g., need a previous snapshot with ref). The description is too sparse.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.